Types of abstracts. There are two types of abstracts: descriptive and informative. They have different aims, so as a consequence they have different components and styles. There is also a third type called critical, but it is rarely used.
Samsung Galaxy Note 7 smartphone has been banned from all aircraft in the United States. The US Transportation Department and other agencies have banned passengers from carrying on the devices or putting them inside checked baggage during flights.
April 2017. Talking on a hand-held cellphone while driving is banned in 14 states and the District of Columbia. The use of all cellphones by novice drivers is restricted in 37 states and the District of Columbia. Text messaging is banned for all drivers in 46 states and the District of Columbia.